JP3801422B2 - Pipe joint - Google Patents

Pipe joint Download PDF

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Publication number
JP3801422B2
JP3801422B2 JP2000168572A JP2000168572A JP3801422B2 JP 3801422 B2 JP3801422 B2 JP 3801422B2 JP 2000168572 A JP2000168572 A JP 2000168572A JP 2000168572 A JP2000168572 A JP 2000168572A JP 3801422 B2 JP3801422 B2 JP 3801422B2
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JP
Japan
Prior art keywords
bolt
pipes
auxiliary pipe
pipe
frustoconical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2000168572A
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Japanese (ja)
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JP2001348963A (en
Inventor
克介 村上
Original Assignee
株式会社村上製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社村上製作所 filed Critical 株式会社村上製作所
Priority to JP2000168572A priority Critical patent/JP3801422B2/en
Publication of JP2001348963A publication Critical patent/JP2001348963A/en
Application granted granted Critical
Publication of JP3801422B2 publication Critical patent/JP3801422B2/en
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Description

【0001】
【発明の属する技術分野】
この発明は、パイプを使用して、ビニル・ハウス、仮設建築物などを構築する際に、複数のパイプを直線状に結合する結合部材に関し、特に、結合部における曲げ強度を向上させたものである。
【0002】
【従来の技術】
長尺パイプは、運搬が困難であるから、長尺パイプを必要とする場合には、複数の短いパイプを結合して使用している。
【0003】
【発明が解決しようとする課題】
しかし、結合部の曲げ強度は、パイプ自体の曲げ強度よりも弱いので、曲げモーメントが作用しない部位で結合している。
【0004】
そこで、この発明は、パイプの結合部における曲げ強度をパイプ自体の曲げ強度の同等の強度を得ることを目的として考えられたものである。
【0005】
【課題を解決するための手段】
この発明の結合部材は、結合すべき2本のパイプA、Bに挿通し得る外径を有する補助パイプCと、この補助パイプに挿通されるボルト4およびボルト4の両端よりねじ込まれて補助パイプCにボルト4を保持するナット1と、軸線方向に複数の切り込み31を入た有底円筒体で、底部32にボルト4の両端を挿通する穴33があけられた2つの拡張スリーブ3と、この拡張スリーブ3の開口端に挿入される斜面21およびボルト4がねじ込まれるねじ穴22を有する2つの円錐台形ナット2とを組み立てたものである。
【0006】
【発明の実施の形態】
図1の斜視図に示すように、この発明の結合部材は、結合すべき2本のパイプA、Bに挿通し得る外径を有する1本の補助パイプCと、1本のボルト4と、補助パイプCの両側に嵌め込まれる2つの第1円錐台形ナット1と、2つの拡張スリーブ3と、2つの第2円錐台形ナット2とにより構成されている。
【0007】
拡張スリーブ3は、図3の斜視図に示すように、軸線方向に2条の切り込み31を入れた有底円筒体であり、底部32にはボルト4を挿通する穴33があけられたものであって、結合すべきパイプA、Bの内径よりも小さい外径を有し、鉄板などの金属板をプレス加工して作られる。
【0008】
第1円錐台形ナット1は、図4の斜視図に示すように、補助パイプCの開口部に圧し込まれる斜面11と、ボルト4がねじ込まれる螺子穴12を備えている。
【0009】
第2円錐台形ナット2は、第1円錐台形ナット1と略同じ形状であって、拡張スリーブ3の開口部に圧し込まれる斜面11と、ボルト4がねじ込まれる螺子穴12を備えている。
【0010】
このように構成された結合部材によって2本のパイプA、Bを突き合わせた状態で結合する際には、補助パイプCにボルト4を挿通し、ボルト4の両端より第1円錐台形ナット1をねじ込んで、図2に示すように組み立てる。このとき、第1円錐台形ナット1は、強くねじ込む必要はなく、補助パイプCが空回りしない程度に締め付ければよいのである。
【0011】
次に、図2に示すように、両側より突出したボルト4に拡張スリーブ3を嵌め込んだのち、第2円錐台形ナット2を軽くねじ込んで組み立てることにより結合部材を完成する。
【0012】
結合すべき2本のパイプA、Bのうち、一方のパイプに対して、組み立てた結合部材の補助パイプCを略半分に長さだけ挿し込んで、補助パイプCを軽く回すと、ボルト4が回って第2円錐台形ナット2にねじ込まれ、拡張スリーブ3を拡げるので、一方のパイプに結合部材を仮止めすることができる。
【0013】
次に、一方のパイプから突出している結合部材を他方のパイプに挿し込み、いずれか一方のパイプを固定して他方のパイプをパイプ・レンチによって回すと、パイプA、Bとともに拡張スリーブ3が回り、同時に第2円錐台形ナット2が回る。
【0014】
このように、両側の拡張スリーブ3とともに2つの第2円錐台形ナット2が互いに反対方向に回されると、ボルト4にねじ込まれた2つの第2円錐台形ナット2の間隔が狭まって、第2円錐台形ナット2は、拡張スリーブ3の開口部に圧し入って拡張スリーブ3を拡げ、結合すべき2本のパイプA、Bの内面に強く圧し付て固定される。
【0015】
(その他の実施の形態)
以上で説明した実施の形態においては、補助パイプCの開口部に第1円錐台形ナット1を締め付けているが、補助パイプCの中に入る段部を有する段付きナットを用いてもよいのである。
【0016】
【発明の効果】
以上の実施の形態に基づく説明から明らかなように、この発明の結合部材を用いて2本のパイプA、Bを結合すると抜けて外れることはなく、かつ、結合部分に補助パイプCが存在するので、結合部分の曲げ強度は結合すべきパイプ自体の曲げ強度よりも劣ることはない。
【0017】
この発明の結合部材を用いて多数のパイプを連続的に結合することにより、曲げ強度の優れた長尺パイプを容易に得ることができる。
【図面の簡単な説明】
【図1】この発明の結合部材の組み立てた状態を示す斜視図、
【図2】この発明の結合部材を組み立てる途中の状態を示す斜視図、
【図3】この発明の結合部材で使用する拡張スリーブを示す斜視図、
【図4】この発明の結合部材で使用する円錐台形ナットを示す斜視図である。
【符号の説明】
A、B 結合すべきパイプ
C 補助パイプ
1、2 円錐台形ナット
3 拡張スリーブ
4 ボルト
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connecting member for connecting a plurality of pipes in a straight line when a pipe is used to construct a vinyl house, a temporary building, etc., and in particular, the bending strength at the connecting portion is improved. is there.
[0002]
[Prior art]
Since long pipes are difficult to transport, a plurality of short pipes are combined and used when long pipes are required.
[0003]
[Problems to be solved by the invention]
However, since the bending strength of the joint is weaker than the bending strength of the pipe itself, the joint is joined at a site where no bending moment acts.
[0004]
Therefore, the present invention has been conceived for the purpose of obtaining the bending strength at the joint portion of the pipe equal to the bending strength of the pipe itself.
[0005]
[Means for Solving the Problems]
The coupling member of the present invention includes an auxiliary pipe C having an outer diameter that can be inserted into the two pipes A and B to be coupled, a bolt 4 inserted into the auxiliary pipe, and an auxiliary pipe screwed from both ends of the bolt 4. A nut 1 for holding the bolt 4 in C, a bottomed cylindrical body with a plurality of cuts 31 in the axial direction, and two expansion sleeves 3 with holes 33 through which both ends of the bolt 4 are inserted in the bottom 32; This is an assembly of two truncated cone-shaped nuts 2 having a slope 21 inserted into the open end of the expansion sleeve 3 and a screw hole 22 into which a bolt 4 is screwed.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
As shown in the perspective view of FIG. 1, the connecting member of the present invention includes one auxiliary pipe C having an outer diameter that can be inserted into two pipes A and B to be connected, one bolt 4, It is constituted by two first frustoconical nuts 1 fitted on both sides of the auxiliary pipe C, two expansion sleeves 3, and two second frustoconical nuts 2.
[0007]
As shown in the perspective view of FIG. 3, the expansion sleeve 3 is a bottomed cylindrical body in which two notches 31 are inserted in the axial direction, and a hole 33 through which the bolt 4 is inserted is formed in the bottom 32. It has an outer diameter smaller than the inner diameter of the pipes A and B to be joined, and is made by pressing a metal plate such as an iron plate.
[0008]
As shown in the perspective view of FIG. 4, the first frustoconical nut 1 includes a slope 11 that is pressed into the opening of the auxiliary pipe C and a screw hole 12 into which the bolt 4 is screwed.
[0009]
The second frustoconical nut 2 has substantially the same shape as the first frustoconical nut 1, and includes a slope 11 that is pressed into the opening of the expansion sleeve 3 and a screw hole 12 into which the bolt 4 is screwed.
[0010]
When connecting the two pipes A and B with the connecting member configured in this manner, the bolt 4 is inserted into the auxiliary pipe C, and the first truncated cone nut 1 is screwed from both ends of the bolt 4. Then, as shown in FIG. At this time, the first frustoconical nut 1 does not need to be screwed in strongly, and may be tightened to such an extent that the auxiliary pipe C does not idle.
[0011]
Next, as shown in FIG. 2, after the expansion sleeve 3 is fitted into the bolts 4 protruding from both sides, the second frustoconical nut 2 is lightly screwed and assembled to complete the coupling member.
[0012]
When one of the two pipes A and B to be joined is inserted into one of the pipes, the auxiliary pipe C of the assembled coupling member is inserted into the length of about half, and the auxiliary pipe C is lightly turned. Since it rotates and is screwed into the second frustoconical nut 2 to expand the expansion sleeve 3, the coupling member can be temporarily fixed to one of the pipes.
[0013]
Next, when the connecting member protruding from one pipe is inserted into the other pipe, one of the pipes is fixed and the other pipe is turned by a pipe wrench, the expansion sleeve 3 rotates together with the pipes A and B. At the same time, the second frustoconical nut 2 rotates.
[0014]
Thus, when the two second frustoconical nuts 2 are rotated in opposite directions together with the expansion sleeves 3 on both sides, the distance between the two second frustoconical nuts 2 screwed into the bolts 4 is reduced, and the second The frustoconical nut 2 is pressed into the opening of the expansion sleeve 3 to expand the expansion sleeve 3, and is firmly pressed against the inner surfaces of the two pipes A and B to be joined.
[0015]
(Other embodiments)
In the embodiment described above, the first frustoconical nut 1 is fastened to the opening of the auxiliary pipe C. However, a stepped nut having a stepped portion entering the auxiliary pipe C may be used. .
[0016]
【The invention's effect】
As is apparent from the description based on the above embodiment, when the two pipes A and B are coupled using the coupling member of the present invention, they do not come off and the auxiliary pipe C exists in the coupling portion. Therefore, the bending strength of the joint portion is not inferior to the bending strength of the pipe itself to be joined.
[0017]
By connecting a large number of pipes continuously using the connecting member of the present invention, a long pipe with excellent bending strength can be easily obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an assembled state of a coupling member of the present invention,
FIG. 2 is a perspective view showing a state in the middle of assembling the coupling member of the present invention,
FIG. 3 is a perspective view showing an expansion sleeve used in the coupling member of the present invention;
FIG. 4 is a perspective view showing a frustoconical nut used in the coupling member of the present invention.
[Explanation of symbols]
A, B Pipe to be joined C Auxiliary pipe 1, 2 Frustum nut 3 Expansion sleeve 4 Bolt

Claims (1)

結合すべき2本のパイプに挿通し得る外径を有する補助パイプと、
該補助パイプに挿通されるボルトおよび該ボルトの両端よりねじ込まれて上記補助パイプにボルトを保持するナットと、
軸線方向に複数の切り込みを入た有底円筒体で、底部に上記ボルトの両端を挿通する穴があけられた2つの拡張スリーブと、
該拡張スリーブの開口端に挿入される斜面および上記ボルトがねじ込まれるねじ穴を有する2つの円錐台形ナットと、
を組み立てたことを特徴とする2本のパイプを結合する結合部材。
An auxiliary pipe having an outer diameter that can be inserted through the two pipes to be joined;
A bolt inserted into the auxiliary pipe and a nut screwed from both ends of the bolt to hold the bolt in the auxiliary pipe;
A cylindrical body with a plurality of notches in the axial direction, and two expansion sleeves with holes at the bottoms through which both ends of the bolts are inserted;
Two frustoconical nuts having a slope inserted into the open end of the expansion sleeve and a screw hole into which the bolt is screwed;
A connecting member for connecting two pipes, characterized by assembling.
JP2000168572A 2000-06-06 2000-06-06 Pipe joint Expired - Fee Related JP3801422B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000168572A JP3801422B2 (en) 2000-06-06 2000-06-06 Pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000168572A JP3801422B2 (en) 2000-06-06 2000-06-06 Pipe joint

Publications (2)

Publication Number Publication Date
JP2001348963A JP2001348963A (en) 2001-12-21
JP3801422B2 true JP3801422B2 (en) 2006-07-26

Family

ID=18671559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000168572A Expired - Fee Related JP3801422B2 (en) 2000-06-06 2000-06-06 Pipe joint

Country Status (1)

Country Link
JP (1) JP3801422B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100880260B1 (en) * 2007-11-05 2009-01-28 권영현 A batten pipe with assemble local pipe
JP5103250B2 (en) * 2008-04-02 2012-12-19 株式会社Nttファシリティーズ Relay tool
CN114232796B (en) * 2021-12-23 2023-09-05 苏州中晟盛金属材料制造有限公司 Steel house of assembled building assembles adapting unit

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JP2001348963A (en) 2001-12-21

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